package cn.tedu.v2_1;

import java.io.*;
import java.net.Socket;
import java.rmi.UnknownHostException;
import java.util.Scanner;

/**
 * 聊天室 Version 2.1
 * 客户端基本不变：关闭socket、扩展增加ip
 *                          1.私有化IP
 *                          2.构造器，当前IP进行赋值
 *                          3.任意位置使用IP【读入知道对方IP】
 */
public class Client {
    private Socket socket;
    //1.私有化IP
    private String ip;
    public Client() {
        try {//172.20.2.203
            socket = new Socket("172.20.2.203", 1117);
            //2.确定传入IP就是当前IP地址
            ip=socket.getInetAddress().getHostAddress();
        }catch (UnknownHostException e){ //用户地址出问题异常
            System.out.println("IP地址有问题，请询问服务器端！");
        }catch (IOException e) { //IO异常：连接失效
            System.out.println("客户端主动退出了，断开连接");
        }


    }
    public void start()  {
        PrintWriter pw=null;
        try {
            pw=new PrintWriter(new BufferedWriter(new OutputStreamWriter(socket.getOutputStream(),"UTF8")),true);
            System.out.println("客户端用户:请输入文字:");
            Scanner input=new Scanner(System.in);
            while (true){
                String say=input.nextLine();
                pw.println(ip+"客户端说："+say);
                System.out.println("写出完毕");
            }
        }catch (UnsupportedEncodingException e) {
            System.out.println("客户端与服务器端：字符集不一致！");
        }catch (IOException e) {
            System.out.println("客户端断开连接！");
        } finally {
            if (pw!=null)
                pw.close();
            if(socket!=null&&!socket.isClosed()){
                System.out.println("客户端关闭成功");
                try {
                    socket.close();
                } catch (IOException e) {
                    System.out.println("客户端关闭失败");
                }

            }
        }
    }

    public static void main(String[] args)  {
        Client client=new Client();
        client.start();
    }

}